3998734857

Names of 3998734857

• Cardinal: 3998734857 can be written as Three billion, nine hundred ninety-eight million, seven hundred thirty-four thousand, eight hundred fifty-seven.

Scientific notation

• Scientific notation: 3.998734857 × 10⁹

Factors of 3998734857

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 396

Divisors of 3998734857

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 27 31 39 81 93 117 169 243 279 349 351 403 507 729 837 1047 1053 1209 1521 2187 2511 3141 3159 3627 4537 4563 5239 7533 9423 9477 10819 10881 13611 13689 15717 22599 28269 28431 32457 32643 40833 41067 47151 58981 67797 84807 97371 97929 122499 123201 140647 141453 176943 254421 292113 293787 367497 369603 421941 424359 530829 763263 876339 881361 1102491 1265823 1273077 1592487 1828411 2629017 3307473 3797469 3819231 4777461 5485233 7887051 9922419 11392407 11457693 14332383 16455699 23661153 34177221 42997149 49367097 102531663 128991447 148101291 307594989 444303873 1332911619 3998734857
• Sum of all divisors σ(n): 6722688000
• Sum of proper divisors (its aliquot sum) s(n): 2723953143
• 3998734857 is a deficient number, because the sum of its proper divisors (2723953143) is less than itself. Its deficiency is 1274781714

Bases of 3998734857

• Binary: 11101110010101111101101000001001₂
• Hexadecimal: 0xEE57DA09
• Base-36: 1U4QRK9

Squares and roots of 3998734857

• 3998734857 squared (3998734857²) is 15989880456586810449
• 3998734857 cubed (3998734857³) is 63939292341016754188868120793
• The square root of 3998734857 is 63235.5505787685
• The cube root of 3998734857 is 1587.2336768767

Scales and comparisons

• 3,998,734,857 seconds is equal to 127 years, 7 weeks, 4 days, 15 hours, 40 minutes, 57 seconds.
• To count from 1 to 3,998,734,857 would take you about two hundred fifty-four years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 3998734857 cubic inches would be around 132.3 feet tall.

Recreational maths with 3998734857

• 3998734857 backwards is 7584378993
• The number of decimal digits it has is: 10
• The sum of 3998734857's digits is 63
• More coming soon!